Excessive working receiving quiet word at first (9)
I believe the answer is:
overblown
'excessive' is the definition.
(overblown means excessive or too much)
'working receiving quiet word at first' is the wordplay.
I cannot quite see how this works, but
'quiet' could be 'low' (low in volume) and 'low' is located in the answer.
'word' could be 'verb' (verb is a kind of word) and 'verb' is present in the answer.
'working' could be 'on' (on can mean working or activated) and 'on' is found within the remaining letters.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for overblown that I've seen before include "bombastic" , "excessive" , "fifteen [POMPOUS]" , "Exaggerated" , "pretentious" .)